Date: Wed, 17 Dec 2008 05:20:03 GMT From: Dieter <freebsd@sopwith.solgatos.com> To: freebsd-bugs@FreeBSD.org Subject: Re: kern/118093: firewire bus reset hogs CPU, causing data to be lost Message-ID: <200812170520.mBH5K3mZ097292@freefall.freebsd.org>
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The following reply was made to PR kern/118093; it has been noted by GNATS.
From: Dieter <freebsd@sopwith.solgatos.com>
To: freebsd-firewire@FreeBSD.org, freebsd-drivers@FreeBSD.org,
bug-followup@FreeBSD.org
Cc:
Subject: Re: kern/118093: firewire bus reset hogs CPU, causing data to be lost
Date: Tue, 16 Dec 2008 19:29:13 +0000
Sean> Which file in dev/firewire are you looking at?
fwohci.c and firewire.c
examples:
printf("non CYCLEMASTER mode\n");
device_printf(fc->dev, "Initiate bus reset\n");
-------------------
Warner> This can't be the case. There's no SPL involved at all. Maybe
Warner> removing the printfs causes an interrupt to be serviced faster,
Warner> resulting in what appears to be better performance...
With the printfs, Ethernet is not getting serviced. This
is repeatable and easily reproduced. Without the printfs,
it seems ok.
If it isn't spl, what is locking out Ethernet?
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